<AWT Dev> Taking screenshots on x11 composite desktop produce wrong result

Mario Torre neugens at redhat.com
Mon Jul 4 12:14:32 UTC 2016

On Wed, Jun 29, 2016 at 12:40 PM, Mario Torre <neugens at redhat.com> wrote:
> Ping?

Ping Ping?

> Cheers,
> Mario
> On Thu, Jun 16, 2016 at 6:47 PM, Mario Torre <neugens at redhat.com> wrote:
>> On Wed, Jun 1, 2016 at 1:52 PM, Semyon Sadetsky
>> <semyon.sadetsky at oracle.com> wrote:
>>> On 6/1/2016 2:39 PM, Mario Torre wrote:
>>>> On Wed, Jun 1, 2016 at 1:23 PM, Semyon Sadetsky
>>>> <semyon.sadetsky at oracle.com> wrote:
>>>>> I ran JPRT build. It seems that the build server does not have the
>>>>> requested
>>>>> header:
>>>>> /opt/jprt/T/P1/102200.ssadetsk/s/jdk/src/java.desktop/unix/native/libawt_xawt/awt/awt_Robot.c:40:39:
>>>>> fatal error: X11/extensions/Xcomposite.h: No such file or directory
>>>>>   #include <X11/extensions/Xcomposite.h>
>>>>> someone need to install Xcomposite library there
>>>> Should this be made optional?
>>>> I can do some dlsym hack if necessary (I would prefer to avoid that
>>>> though).
>>> Apparently dlsym is the shortest way to fix that issue and you don't need to
>>> modify the makefile in that case.
>> Well, to be honest, I think Xcomposite should just be a requirement, I
>> believe all the systems that OpenJDK 9 targets as "supported" have
>> that library, it just needs to be installed.
>> Anyway, this is the patch with the dl-stuff hacks:
>> http://cr.openjdk.java.net/~neugens/8150954/webrev.06/
>> The only question I have is where to unload the library, I gave a look
>> at what the XToolkit code does with GTK, and it seems that it's just
>> never unloaded (there's a method to unload the library, but looks like
>> it's never used anywhere, except, of course, if some functions fail to
>> load in the first place, which is what I also do here). I think this
>> is not a real problem though, so rather than making the whole code a
>> lot more complex I would keep it that way, YMMV.
>> I believe I need again two approvals now.
>> Cheers,
>> Mario

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